A permanent magnet synchronous generator with built-in rotor

Abstract

The present invention relates to the technical field of generators, and discloses a rotor-built-in permanent magnet synchronous generator, comprising a body; an output shaft; the output shaft is connected to a rotor inside the body through a torque control driving mechanism, and a stator is arranged inside the body; the torque control driving mechanism comprises a centrifugal sliding component, a torsion component and a synchronization component. The rotor-built-in permanent magnet synchronous generator, through the torque control driving mechanism, can firstly drive the rotation of the output shaft with a small torque rotation force. Because the structure of the planetary gear has a certain deceleration and labor-saving effect, the overall force driving the output shaft to rotate is small enough, so that the rotation of the rotor can be indirectly driven, thereby solving the problem of excessively high starting torque of the permanent magnet synchronous generator in the prior art, reducing the starting current of the permanent magnet synchronous generator, and making the permanent magnet synchronous generator more stable during use and starting more smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of generators, and in particular to a permanent magnet synchronous generator with an internal rotor. Background Art

[0002] Permanent magnet generator refers to a power generation device that converts mechanical energy converted from heat energy into electrical energy. Permanent magnet generators have the advantages of small size, low loss, and high efficiency. Today, when energy conservation and environmental protection are increasingly valued, research on them is very necessary. In many cases, brushless can be achieved, so they are mostly used by small and micro motors. When powered by a variable frequency power supply, permanent magnet motors can also be used in speed control transmission systems. With the continuous improvement and improvement of the performance of permanent magnet materials, permanent magnet motors have been widely used in various fields such as household appliances, medical equipment, automobiles, aviation, and national defense.

[0003] At present, the biggest disadvantage of permanent magnet generators in actual use is that the starting torque is too high.

[0004] First, the permanent magnet synchronous motor has a high magnetic flux density. The magnetic field strength of the permanent magnet is much higher than that of the electromagnet. The torque generated when the permanent magnet synchronous motor starts will also increase accordingly.

[0005] Second: The rotor structure of the permanent magnet synchronous motor is compact and the inertia is small, so the torque at startup will also increase accordingly. If the permanent magnet generator needs to be started, the initial torque of the equipment to be driven needs to be large enough, otherwise it will not be able to start or the startup will be unstable. However, if the starting torque is too large, the starting current of the equipment will be greater, so there will be certain damage to the starting equipment. Therefore, a permanent magnet synchronous generator with an internal rotor is proposed to solve the above problems. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the present invention provides a permanent magnet synchronous generator with an internal rotor, which solves the problem in the prior art that the starting torque of the permanent magnet synchronous motor is too large, resulting in a large initial starting current of the equipment driving the generator to rotate, making it difficult to start, or the starting is unstable.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a permanent magnet synchronous generator with an internal rotor, comprising a body; an output shaft; the output shaft is connected to the rotor inside the body through a torque control drive mechanism, and a stator is arranged inside the body; the torque control drive mechanism comprises a centrifugal sliding component, a torsion component and a synchronous component; the output shaft rotates with low torque to drive the rotor to rotate through the torsion component, and then drives the synchronous component and the rotor to rotate synchronously through the movement of the centrifugal sliding component.

[0010] Preferably, the centrifugal sliding assembly includes a connecting seat, one end of the connecting seat is connected to a synchronous shaft, the connecting seat is connected to a pull rod, the pull rod is slidably connected to a centrifugal frame, the centrifugal frame is rotatably connected to the output shaft through an axle rod, one end of the centrifugal frame is connected to a counterweight ball, the output shaft is fixedly connected to a fixed sleeve inside, the synchronous shaft is slidably connected to the fixed sleeve, an extrusion spring is sleeved on the synchronous shaft, the extrusion spring is located between the connecting seat and the fixed sleeve, and one end of the synchronous shaft is connected to the torsion assembly.

[0011] Preferably, two counterweight balls are provided, and the two counterweight balls are symmetrically distributed with the center of the connecting seat as the symmetry axis, and a ball sleeve is provided on the periphery of the counterweight ball, and the ball sleeve is connected to the output shaft.

[0012] Preferably, a clearance groove and an axial groove are provided on the output shaft, the centrifugal frame is located inside the clearance groove, and the synchronous shaft is slidably connected in the axial groove via a sliding key.

[0013] Preferably, the torsion assembly includes a driving gear, which is connected to the end of the synchronous shaft, and a plurality of meshing gears are meshed on the driving gear. A gear sleeve is meshed on the surface of the meshing gear, and the gear sleeve is connected to the rotor. The plurality of meshing gears are connected to a connecting plate through a shaft rod, and the connecting plate is connected to the interior of the machine body through a connecting piece.

[0014] Preferably, the synchronization component includes a left gear sleeve and a right gear sleeve, the left gear sleeve is connected to the gear sleeve, the right gear sleeve is connected to a synchronization slide, and the synchronization slide is connected to a synchronization shaft.

[0015] Preferably, a connecting rod is slidably connected to the synchronous slide, one end of the connecting rod is connected to the right gear sleeve, a telescopic spring is sleeved on the surface of the connecting rod, a contact angle is set on the teeth of the left gear sleeve, and a matching angle is set on the teeth of the right gear sleeve.

[0016] Preferably, a slot is provided at the tooth position of the right gear sleeve, one side of the right gear sleeve is rotatably connected to a knob, one side of the knob is connected to a pressing plate via a shaft, and the pressing plate is located inside the slot.

[0017] Preferably, a clamping block is slidably connected to the tooth portion of the left gear sleeve, a clamping spring is connected to one side of the clamping block, and one end of the clamping spring is connected to the inside of the left gear sleeve.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a permanent magnet synchronous generator with an internal rotor, which has the following beneficial effects:

[0020] 1. The permanent magnet synchronous generator with built-in rotor can firstly drive the rotation of the output shaft with a small torque through the torque control driving mechanism, and utilize the torsion component of the planetary gear structure inside the body to drive the rotation of the gear sleeve, and finally drive the built-in rotor to rotate. Because the structure of the planetary gear has a certain deceleration and labor-saving effect, the overall force driving the output shaft to rotate is small enough, so that the rotation of the rotor can be indirectly driven, thereby solving the problem of excessively high starting torque of the permanent magnet synchronous generator in the prior art, reducing the starting current of the permanent magnet synchronous generator, and making the permanent magnet synchronous generator more stable during use and smoother to start.

[0021] 2. The rotor-built-in permanent magnet synchronous generator can control the drive gear to disengage from the planetary gear structure after the generator rotates through the synchronization component, so that the entire output shaft indirectly acts on the rotor, realizing the mutual synchronous rotation of the rotor and the output shaft, so that the rotation speed of the rotor is gradually synchronized with the rotation speed of the output shaft, thereby ensuring the output voltage stability of the generator, and directly reducing the rotation speed of the output shaft, further improving the stability of the equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a rotor-internal permanent magnet synchronous generator proposed by the present invention;

[0023] Figure 2 A schematic cross-sectional structure diagram of a rotor-internal permanent magnet synchronous generator proposed by the present invention;

[0024] Figure 3 This is a schematic structural diagram of a centrifugal sliding assembly of a permanent magnet synchronous generator with an internal rotor proposed by the present invention;

[0025] Figure 4 This is a schematic structural diagram of a torsion assembly of a permanent magnet synchronous generator with an internal rotor proposed by the present invention;

[0026] Figure 5 A schematic diagram of the structure of a synchronous assembly of a permanent magnet synchronous generator with an internal rotor proposed by the present invention;

[0027] Figure 6A schematic diagram of the connection structure between a synchronous shaft and a synchronous slide of a permanent magnet synchronous generator with an internal rotor proposed by the present invention;

[0028] Figure 7 This is a partial cross-sectional structural diagram of a right gear sleeve of a permanent magnet synchronous generator with an internal rotor proposed by the present invention;

[0029] Figure 8 The diagram is a partial cross-sectional structural diagram of the left gear sleeve of a permanent magnet synchronous generator with an internal rotor proposed by the present invention.

[0030] In the figure: 1, body; 2, output shaft; 3, torque control drive mechanism; 311, centrifugal frame; 312, give way groove; 313, ball sleeve; 314, counterweight ball; 315, pull rod; 316, connecting seat; 317, fixed sleeve; 318, extrusion spring; 319, synchronous shaft; 321, driving gear; 322, meshing gear; 323, gear sleeve; 324, connecting plate; 331, left gear sleeve; 332, right gear sleeve; 333, contact angle; 334, matching angle; 341, synchronous slide; 342, connecting rod; 343, telescopic spring; 351, knob; 352, slot; 353, pressing plate; 354, block; 355, clamping spring; 4, axial slot; 5, rotor; 6, stator. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-8 A permanent magnet synchronous generator with an internal rotor includes a body 1 and an output shaft 2, wherein the output shaft 2 is connected to a rotor 5 inside the body 1 through a torque control driving mechanism 3, and a stator 6 is arranged inside the body 1;

[0033] In this embodiment, the torque control driving mechanism 3 includes a centrifugal sliding component, a torsion component and a synchronization component.

[0034] See also Figure 3The centrifugal sliding assembly includes a connecting seat 316, one end of which is connected to a synchronous shaft 319, a pull rod 315 is connected to the connecting seat 316, and a centrifugal frame 311 is slidably connected to the pull rod 315. The centrifugal frame 311 is rotatably connected to the output shaft 2 through an axle rod, and a counterweight ball 314 is connected to one end of the centrifugal frame 311. The function of the counterweight ball 314 is to increase the centrifugal force when the centrifugal frame 311 rotates. Because when the gravity at the end of the centrifugal frame 311 is heavier, the centrifugal force generated when the centrifugal frame 311 rotates in the later stage will be greater, thereby driving the lateral sliding of the synchronous shaft 319. A fixed sleeve 317 is fixedly connected to the inside of the output shaft 2, and the synchronous shaft 319 is slidably connected to the fixed sleeve 317. An extrusion spring 318 is sleeved on the synchronous shaft 319, and the extrusion spring 318 is located between the connecting seat 316 and the fixed sleeve 317. One end of the synchronous shaft 319 is connected to the torsion assembly. By rotating the synchronization shaft 319 and utilizing the centrifugal force of rotation, the two centrifugal frames 311 are relatively rotated and unfolded on the clearance groove 312. When the centrifugal frames 311 are unfolded, the pull rod 315 will slide in the centrifugal frame 311, and the synchronization shaft 319 will be pushed forward by cross-rotation sliding, thereby providing a disengagement sliding force for the driving gear 321 and a matching sliding force for the left gear sleeve 333 and the right gear sleeve 332.

[0035] For further information, see Figure 3 There are two counterweight balls 314, and the two counterweight balls 314 are symmetrically distributed with the center of the connecting seat 316 as the symmetry axis. Through the symmetrical structure, when the entire output shaft 2 rotates, the rotational centrifugal force between the two can synchronously squeeze the forward movement of the synchronization shaft 319, making the overall movement more stable. The outer periphery of the counterweight ball 314 is provided with a ball sleeve 313, and the ball sleeve 313 is connected to the output shaft 2. The main function of the ball sleeve 313 is to protect the two counterweight balls 314 from being interfered by external structures, and to protect the interior.

[0036] For further information, see Figure 3 The output shaft 2 is provided with a clearance groove 312 and an axial groove 4, and the centrifugal frame 311 is located inside the clearance groove 312. Since the entire centrifugal frame 311 needs a rotation space during the rotation process, the set clearance groove 312 can provide the centrifugal frame 311 with a rotation space, and the centrifugal rotation failure will not occur. The synchronous shaft 319 is slidably connected in the axial groove 4 by a sliding key, and the sliding mode of the keyway can ensure that the output shaft 2 can drive the rotation of the synchronous shaft 319 when rotating, and the synchronous shaft 319 can also slide on the output shaft 2.

[0037] Also, see Figure 4The torsion assembly includes a driving gear 321, which is connected to the end of the synchronous shaft 319. A plurality of meshing gears 322 are meshed on the driving gear 321. A gear sleeve 323 is meshed on the surface of the meshing gear 322. The gear sleeve 323 is connected to the rotor 5. A plurality of meshing gears 322 are connected to the connecting piece 324 through a shaft rod. The connecting piece 324 is connected to the inside of the body 1 through a connecting piece. When the output shaft 2 rotates, the synchronous shaft 319 is connected by a sliding key, so the synchronous shaft 319 will also rotate synchronously at this time, and the driving gear 321 on the synchronous shaft 319 will also rotate synchronously. The driving gear 321 and the plurality of meshing gears 322 will form a meshing rotation process, driving the rotation of the gear sleeve 323. However, because it is a planetary structure transmission, the torque of the driving gear 321 is lower than that of directly driving the gear sleeve 323, and finally directly solves the problem of excessive starting torque of the permanent magnet synchronous generator in the prior art.

[0038] In addition, see Figure 5 The synchronous assembly includes a left gear sleeve 331 and a right gear sleeve 332. The left gear sleeve 331 is connected to the gear sleeve 323. The right gear sleeve 332 is connected to a synchronous slide 341. The synchronous slide 341 is connected to the synchronous shaft 319. Because the main function of the torsion assembly is to start the permanent magnet synchronous generator, after the startup is completed, it is necessary to ensure that the speed of the output shaft 2 is consistent with the speed of the rotor in order to generate current more stably. Therefore, the synchronous assembly is set. When the synchronous shaft 319 slides and rotates, it will drive the synchronous slide 341 connected thereto to rotate and slide. During the sliding process of the synchronous slide 341, it will drive the right gear sleeve 332 connected thereto to gradually approach the left gear sleeve 333, and finally merge together, so that the speed synchronization is formed between the two, thereby reducing the speed of the output shaft 2 and ensuring the normal synchronous rotation operation of the generator.

[0039] It is worth noting that see Figure 5 The synchronous slide 341 is slidably connected with a connecting rod 342, one end of which is connected to the right gear sleeve 332, and a telescopic spring 343 is sleeved on the surface of the connecting rod 342, so that the speeds of the two are synchronized, thereby reducing the speed of the output shaft 2. The teeth of the left gear sleeve 331 are provided with a contact angle 333, and the teeth of the right gear sleeve 332 are provided with a matching angle 334. The contact angle 333 and the matching angle 334 provide an oblique angle, so that when the left gear sleeve 333 and the right gear sleeve 332 just come into contact, they can achieve contact sliding and squeezing the telescopic spring 343 to achieve giving way.

[0040] It is worth mentioning that please refer to Figure 6-8The tooth part of the right gear sleeve 332 is provided with a slot 352, and a knob 351 is rotatably connected to one side of the right gear sleeve 332. A pressing piece 353 is connected to one side of the knob 351 through a shaft, and the pressing piece 353 is located inside the slot 352. When the generator stops, if the left gear sleeve 333 and the right gear sleeve 332 are to be separated, the operator needs to rotate the knob 351, and drive the multiple pressing pieces 353 to rotate in the right gear sleeve 332 through the connecting rod, so as to rotate and squeeze the block 354 stuck in the slot 352 to separate, and after the block 354 is subjected to force, it will squeeze the clamping spring 355, so as to realize the clamping separation of the block 354 and the slot 352, and then the squeezing spring 318 will drive the synchronous shaft 319 to pull back, and then drive the overall reset separation of the right gear sleeve 332 through the synchronous slide 341. The tooth portion of the left tooth sleeve 331 is slidably connected with a clamping block 354, one side of the clamping block 354 is connected with a clamping spring 355, one end of the clamping spring 355 is connected to the inside of the left tooth sleeve 331, because the extrusion spring 318 will apply a reverse reset force to control the reset sliding of the synchronization shaft 319, so the clamping block 354 and the clamping groove 352 are provided, when the clamping block 354 is stuck in the clamping groove 352, the left tooth sleeve 333 and the right tooth sleeve 332 are stuck, and the extrusion spring 318 will not be able to indirectly drive the reset of the right tooth sleeve 332.

[0041] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0042] Working principle, first use an external device to connect to the output shaft 2 in the body 1, so as to drive the rotation of the output shaft 2. At this time, the torque of the external device driving the output shaft 2 to rotate does not need to be too large. When the output shaft 2 rotates, the connection with the synchronous shaft 319 is made by the sliding key, so the synchronous shaft 319 will also rotate synchronously at this time, and the driving gear 321 on the synchronous shaft 319 will also rotate synchronously. The driving gear 321 and the multiple meshing gears 322 will form a meshing rotation process, driving the rotation of the gear sleeve 323. However, because it is a planetary structure transmission, the torque of the driving gear 321 is lower than that of the direct drive gear sleeve 323. Finally, the problem of excessive starting torque of the permanent magnet synchronous generator in the prior art is directly solved. When the gear sleeve 323 rotates, it will directly drive the rotation of the rotor 5, and the coil on the rotor 5 will rotate in the stator 6, and the induced electromotive force will be generated in the conductor coil through the rotating magnetic field, thereby inducing current flow, and then outputting electrical energy.Afterwards, when the output shaft 2 continues to rotate, the synchronous shaft 319 rotates, and the two centrifugal frames 311 are relatively rotated and unfolded on the give way groove 312 by utilizing the rotating centrifugal force. When the centrifugal frame 311 is unfolded, the pull rod 315 will slide in the centrifugal frame 311, and the synchronous shaft 319 will be pushed forward by the cross-rotation sliding method. When the synchronous shaft 319 moves forward, it will slide in the axial groove 4 on the output shaft 2. Therefore, even if the output shaft 2 is rotating, it will not affect the forward movement of the synchronous shaft 319. During the forward movement, the synchronous shaft 319 will drive the driving gear 321 to move forward, and then disengage the driving gear 321 from the multiple meshing gears 322. Because the main function of the torsion component is to start the permanent magnet synchronous generator, after the start-up is completed, it is necessary to ensure that the speed of the output shaft 2 is consistent with the speed of the rotor in order to generate current more stably. Therefore, the synchronous component is set. When the synchronous shaft 319 slides and rotates, it will drive the synchronous slide 341 connected to it to rotate and slide. During the sliding process of the synchronous slide 341, it will drive the synchronous slide 341 connected to it to rotate and slide. The connected right gear sleeve 332 gradually approaches the left gear sleeve 333, and when it moves to the contact state, each tooth will come into contact, and the right gear sleeve 332 will contact the left gear sleeve 333 to form an extrusion state. Then, in the extrusion and toothing state, the right gear sleeve 332 will be driven to move backward, squeezing the telescopic spring 343, and finally realizing rotational giving way. Because the rotation speed of the right gear sleeve 332 and the left gear sleeve 333 is different at this time, the left gear sleeve 333 needs to be matched and connected with the right gear sleeve 332 so that the rotation speeds of the two are synchronized, thereby reducing The speed of the output shaft 2 is low. When the entire synchronous shaft 319 moves to the extreme position, the right gear sleeve 332 will be completely stuck on the left gear sleeve 333 to achieve matching, and the multiple blocks 354 on the left gear sleeve 333 will be stuck in the slot 352 on the right gear sleeve 332 to achieve matching. At this time, the driving gear 321 will also slide out of the meshing gear 322, and finally form the rotation of the output shaft 2, which can drive the synchronous rotation of the patent 5 through the synchronous component to ensure the synchronization of the speed and improve the driving stability of the overall generator. Because the extrusion spring 318 will apply a reverse reset force to control the reset sliding of the synchronous shaft 319, the block 354 and the slot 352 are set. When the block 354 is stuck in the slot 352, the left gear sleeve 333 and the right gear sleeve 332 are stuck, and the extrusion spring 318 will not be able to indirectly drive the reset of the right gear sleeve 332.When the generator stops, in order to disengage the left gear sleeve 333 and the right gear sleeve 332, the operator needs to turn the knob 351, which drives the multiple pressure plates 353 to rotate in the right gear sleeve 332 through the connecting rod, and then rotates and squeezes the block 354 stuck in the slot 352 to disengage. After the block 354 is subjected to force, it will squeeze the engaging spring 355 to achieve the engagement and separation of the block 354 and the slot 352. Then, the squeezing spring 318 will drive the synchronous shaft 319 to pull back, and then drive the overall reset and separation of the right gear sleeve 332 through the synchronous slide 341, and the driving gear 321 will also slide back to the center position of the four meshing gears 322 to achieve engagement.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A permanent magnet synchronous generator with an internal rotor, characterized in that: include: Body (1); Output shaft (2); The output shaft (2) is connected to a rotor (5) inside a machine body (1) via a torque control drive mechanism (3); a stator (6) is provided inside the machine body (1); The torque control driving mechanism (3) comprises a centrifugal sliding component, a torsion component and a synchronization component; The output shaft (2) rotates at a low torque to drive the rotor (5) to rotate through the torsion assembly, and then drives the synchronization assembly and the rotor (5) to rotate synchronously through the movement of the centrifugal sliding assembly; The centrifugal sliding assembly comprises a connecting seat (316), one end of the connecting seat (316) is connected to a synchronous shaft (319), the connecting seat (316) is connected to a pull rod (315), the pull rod (315) is slidably connected to a centrifugal frame (311), the centrifugal frame (311) is rotatably connected to the output shaft (2) via a shaft rod, one end of the centrifugal frame (311) is connected to a weight ball (314), the output shaft (2) is fixedly connected to a fixed sleeve (317), the synchronous shaft (319) is slidably connected to the fixed sleeve (317), the synchronous shaft (319) is sleeved with an extrusion spring (318), the extrusion spring (318) is located between the connecting seat (316) and the fixed sleeve (317), and one end of the synchronous shaft (319) is connected to the torsion assembly; The torsion assembly comprises a driving gear (321), the driving gear (321) being connected to the end of a synchronous shaft (319), a plurality of meshing gears (322) being meshed on the driving gear (321), a gear sleeve (323) being meshed on the surface of the meshing gear (322), the gear sleeve (323) being connected to the rotor (5), the plurality of meshing gears (322) being connected to a connecting piece (324) via a shaft, and the connecting piece (324) being connected to the interior of the machine body (1) via a connecting piece; The synchronization component comprises a left gear sleeve (331) and a right gear sleeve (332), wherein the left gear sleeve (331) is connected to the gear sleeve (323), and the right gear sleeve (332) is connected to a synchronization slide (341), wherein the synchronization slide (341) is connected to a synchronization shaft (319); A connecting rod (342) is slidably connected to the synchronous slide (341), one end of the connecting rod (342) is connected to the right gear sleeve (332), a telescopic spring (343) is sleeved on the surface of the connecting rod (342), a contact angle (333) is provided on the teeth of the left gear sleeve (331), and a matching angle (334) is provided on the teeth of the right gear sleeve (332).

2. The rotor-internal permanent magnet synchronous generator according to claim 1, characterized in that: Two counterweight balls (314) are provided, and the two counterweight balls (314) are symmetrically distributed with the center of the connecting seat (316) as the symmetry axis. A ball sleeve (313) is provided on the periphery of the counterweight ball (314), and the ball sleeve (313) is connected to the output shaft (2).

3. A permanent magnet synchronous generator with an internal rotor according to claim 2, characterized in that: The output shaft (2) is provided with a clearance groove (312) and an axial groove (4); the centrifugal frame (311) is located inside the clearance groove (312); and the synchronous shaft (319) is slidably connected in the axial groove (4) via a sliding key.

4. The rotor-internal permanent magnet synchronous generator according to claim 3, characterized in that: A slot (352) is provided at the tooth position of the right gear sleeve (332); one side of the right gear sleeve (332) is rotatably connected to a knob (351); one side of the knob (351) is connected to a pressing plate (353) via a shaft; the pressing plate (353) is located inside the slot (352).

5. The rotor-internal permanent magnet synchronous generator according to claim 4, characterized in that: A clamping block (354) is slidably connected to the tooth portion of the left tooth sleeve (331), one side of the clamping block (354) is connected to a clamping spring (355), and one end of the clamping spring (355) is connected to the inside of the left tooth sleeve (331).

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